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[omegasport]

hi i just purchased a 3.0 mv6 omega on a 1999 very clean and was running great . but all of a sudden my idle became lumpy but when u press the throttle its dead smooth .over the last few days ive read stuff on this site and got to work but still not right .ive check and cleaned breather box and the pips comming from that unit but already clean  ive cleaned that long black bit on top of manifold ive cleaned the throttle body .ive checked timing marks ive made sure all little pipes are going to the right places .but my rocker gaskets were leaking so i changed them and they leak still i checked and cleaned idle valve ive put new spark plugs in and ht leads full oil changed and gave her a good flush but i did notice the passenger side egr pipe coming from the manifold has a large kink but exhaust gas still comes out of it .also that eco tech hoover dont work thats in the wing next to the horns i dont know if that would have anything to do with some of my problem how important is that hoover i hope some1 can help me please please oh 1 other thing ive sprayed carb cleaner all over the show cos i thought i might have a air leak but engine did not change while spraying it

thanks

[RobG]

The "hoover" under passenger wing is the secondary air pump (SAI) don`t need it so don`t worry about it not working. Camcover gaskets, did you use genuine and torque bolts to 8Nm. Suggest you `clip it and see if you`ve any fault codes lurking http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

[albitz]

My guess would be plug leads and/or DISpack fried by leaking camcover gaskets. Wont throw up a fault code btw.

[omegasport]

hi i have changed my leads and no oil has got into spark plug holes and the oil is coming out over the exhaust manifold only ?

[gstylebaby]

I know this mite sound daft mate but if you have had the plenum off go back and check all th seals are sat correctly and all double check that you have the right leads to the right plus i changed my leads and plugs and got the rather things the wrong way round i was so sure that i had it right i took to my mates garage and they spent the day on it only to find i mixed two the leads cost me £120 quid for the full days labour. Also do what rob g says and paper clip test it see if there are any codes. Hope this hleps mate.

[omegasport]

hi ive checked all the and all is ok but still no diffrance so im going down the road of a compression test can the test still be done evan tho the inlet manifold has to be off

thanks

[eliteomegaman]

I've had a '2' month problem withmy 2.5 

Everything was changed & tested but still my car ran like it was on 4 cylinders instead of 6 & tick over was lumpy as u put it!

Last thing we did was change the dis pack   

now runs smoother than my head (i'm shaved)